Pollan described this facility as a " botanic ark , " since it preserves living trees of some of the rarest and most endangered apple varieties .
这个资源库中保存了最为稀有的苹果树种,因而pollan把它称为”植物的诺亚方舟“。
Being bilingual or learning languages preserves brain function and lowers the risk of dementia , and the " use it or lose it " theory also has proven benefits .
使用双语或学习语言可以保持大脑功能,降低痴呆症的风险,同时“不用则废”理论也已经证明了其好处。
No-till agriculture , an agronomic practice in which farmers do not plough up the land but leave part of the previous year 's crop on it , also preserves water .
Samples are perched above eight inches ( 20 centimeters ) of liquid nitrogen , so it 's the vapor , rather than the liquid itself , that cools and preserves the genetic information .
样品置于液氨罐8英寸上(20厘米),所以是用水蒸气,而不是液体,来冷却和保持遗传信息。
Lucky for archaeologists , the chemical make-up of a bog preserves human flesh very well , allowing them to study the unlucky bog bodies closely .
That 's why it 's important to take the back up measure of refrigerating all jams , jellies , and preserves once you 've opened them .
这就是为何果酱、果冻和蜜饯一旦开封,就一定要放到冰箱冷藏的原因。
Food processing and handling technology developed at iit bombay preserves food by extracting fluids from produce , reducing oxygen levels in storage rooms , refrigerating produce during transportation , and freezing foods with liquid nitrogen .
Large tracts of grassy fields and forests in the area ( light to dark green respectively ) include nature preserves , grazing lands , and flood control areas .
此地区的大片绿地和植被(分别显示为浅绿和深绿色)包含了自然保护区域、牧地和防洪区。
And now , at last , he is stepping down as cuba 's president , for reasons of age and ill-health , but of his own volition and with what he clearly hopes will be an orderly succession that preserves his revolution .